From e8c01bdb56549adcecd71ce39160eea54b2c51c8 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Fri, 30 Oct 2009 21:07:27 +0000
Subject: [PATCH] Instantiate class template friends better; fixes PR5332.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85612 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Sema/SemaTemplateInstantiateDecl.cpp    |  9 ++++++++-
 test/CXX/temp/temp.decls/temp.friend/p5.cpp |  2 ++
 test/SemaTemplate/friend-template.cpp       | 10 ++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 0b54533175..f511eb15d2 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -425,12 +425,19 @@ Decl *TemplateDeclInstantiator::VisitClassTemplateDecl(ClassTemplateDecl *D) {
     = ClassTemplateDecl::Create(SemaRef.Context, Owner, D->getLocation(),
                                 D->getIdentifier(), InstParams, RecordInst, 0);
   RecordInst->setDescribedClassTemplate(Inst);
-  Inst->setAccess(D->getAccess());
+  if (D->getFriendObjectKind())
+    Inst->setObjectOfFriendDecl(true);
+  else
+    Inst->setAccess(D->getAccess());
   Inst->setInstantiatedFromMemberTemplate(D);
   
   // Trigger creation of the type for the instantiation.
   SemaRef.Context.getTypeDeclType(RecordInst);
   
+  // We're done with friends now.
+  if (Inst->getFriendObjectKind())
+    return Inst;
+  
   Owner->addDecl(Inst);
   
   // First, we sort the partial specializations by location, so 
diff --git a/test/CXX/temp/temp.decls/temp.friend/p5.cpp b/test/CXX/temp/temp.decls/temp.friend/p5.cpp
index f1142a4129..74895c4906 100644
--- a/test/CXX/temp/temp.decls/temp.friend/p5.cpp
+++ b/test/CXX/temp/temp.decls/temp.friend/p5.cpp
@@ -9,3 +9,5 @@ class B {
   template <class T> friend class A<T>::Member;
 };
 
+A<int> a;
+B b;
diff --git a/test/SemaTemplate/friend-template.cpp b/test/SemaTemplate/friend-template.cpp
index 761c13076d..dc277f4657 100644
--- a/test/SemaTemplate/friend-template.cpp
+++ b/test/SemaTemplate/friend-template.cpp
@@ -54,6 +54,7 @@ struct X1 {
 template<typename U> void f2(U);
 
 X1<int> x1i;
+X0<int*> x0ip;
 
 template<> void f2(int);
 
@@ -62,3 +63,12 @@ template<> void f2(int);
 template<typename U> void f3(U);
 
 template<> void f3(int);
+
+// PR5332
+template <typename T>
+class Foo {
+  template <typename U>
+  friend class Foo;
+};
+
+Foo<int> foo;
-- 
2.40.0